Apparatus for winding induction-coils.



No. 862,935. I PATENTED AUG. 13, 1907. G. A. PFANSTIEHL.

APPARATUS FOR WINDING INDUCTION GOILS.

APPLICATION FILED DEO.27,1906.

2 SHEETS-SHEET l.

No 862,935. PATENTED AUG. 13, 1907. c. A. PPANSTIEHL. APPARATUS FORWINDING INDUCTION cons.

APPLICATION FILED DEO.27.1906.

2 SHEETSSHEET 2.

UNITED STATES PATENT OFFICE.

CARL A. PFANSTIEHL, OF HIGHLAND PARK, ILLINOIS, ASSIGNOR, BY DIRECT ANDMESNE ASSIGNMENTS, TO PFANSTIEHL ELECTRICAL LABORATORY, OF NORTHCHICAGO,

ILLINOIS, A CORPORATION.

APPARATUS FOR WINDING INDUCTION-COILS.

Specification of Letters Patent.

Patented Aug. 13, 1907.

Application filed December 2'7, 1906. Serial No. 349,726.

To all whom it may concern:

Be it known that I, CARL A. PFANSTIEHL, a citizen of the United Statesof America, and a resident of Highland Park, in the county of Lake andState of Illinois,

have invented certain new and useful Improvements in Apparatus forWinding Induction-Coils, of which the following is a specification.

This invention relates to an apparatus for winding induction coilsections or units of the pancake form, and

more especially the type of units which comprise a pair of reverselywound individual windings connected together at their innermost ends andwith their outer ends adapted for ready connection with the like ends ofadjacent coil sections. And the present improvement 4 has for its objectto provide a simple and effective structural arrangement andcombinationof parts whereby the different winding operations are performed in aready, rapid and economical manner, all as will hereinafter more fullyappear.

In the accompanying drawingsz-Fig'ure 1 is a diagram view illustratingthe general arrangement of the present winding apparatus. Fig. 2 is adetail elevation with parts in section, illustrating the arrangement ofthe winding head in effecting the simultaneous formation of the initialwindings of a series of coil sections or units. Fig. 3 is a similar viewof the arrangement'of the winding head in effecting the simultaneousformation of the other or final individual windings of the series ofcoil sections or units. Fig. 4is an enlarged detail sec- 3 0 tion,illustrating the arrangement of parts in the formation of the initialindividual winding aforesaid. Fig. 5 is a similar view illustrating thearrangement of parts in the formation of the final individual windingsaforesaid. Fig. 6 is a side elevation of one of the sectional 3 5 fillerdisks of the present winding mechanism.

Similar numerals of reference indicate like parts in the several views.I

Referring to the drawings, 1 represents a holding reel upon which iscarried in any usual and suitable manner a series of supply coils ofcovered wire coi'responding in number to the number of simultaneouswindings laid during the operation of the winding mechanism.

2 is the melting tank containing the supply of molten paraffin or likematerial, through which the series of covered wires pass on their way tothe winding head.

3 is a drum under which said wires pass to insure their immersion andproper saturation with the molten parafiin.

4 is the cylindrical axially arranged arbor of the winding mechanismformed at each end with counterpart screw-threaded extensions 5 and 6,for alternate attachment to the chuck or head 7 of the live spindle ofthe carrying head 8 of the mechanism, and so that a ready and convenientreversal of the said arbor can be effected in the progress of formingthe series of coil units or sections. Any usual and equivalent means ofattaching the arbor to the live spindle may however be used withoutdeparting from the spirit of this part of the present invention.

9 is a fixed abutment collar near one end of the arbor 4, and 10 is aclamping nut screwing upon the other end of said arbor to securely clampthe hereinafter described spool holding means in place on said arbor.

11 are single end disks of aluminium or the like fitting upon the arbor4, while 12 are pairs of intermediate disks, held in spaced relation bythe series of spacing collars 13, surrounding the arbor 4, as shown, andso as to provide a series of peripheral channels in the winding head inwhich are received and held'the series of spools upon which the windingsof the coil units or sections are wound.

The winding apparatus illustrated in the drawings is more especiallyadapted for forming the type of induction coil units which constitutethe subject matter of my companion application for Letters Patent SerialNumber 349,725 filed December 27, 1906, and the form of spools employedtherein is shown in the present drawings to illustrate the functions ofthe present apparatus;

such spools comprise the following construction 14 and 15 are centrallyorificed outer spool heads, and

16 the intermediate and similarly orificed spool heads, held in properseparated relation by inner annular necks 17-on the aforesaid outerspoolheads, and which necks have bearing against the opposite faces ofthe in- I termediate spool heads 16, to hold the respective heads inproper separated relation and provide counterpart annular cavities forthe coil windings hereinafter described.

18, is a small hole or passage through the intermediate spool head 16,in adjacent relation to the central orifice thereof, and adapted toreceive an end portion of the wire used in forming the coil winding ashereinafter more fully set forth.

In the present arrangement each spool, constructed as above described,will have a width equal to that of a spacing collar 13, before referredto, and each spool will have its individual pair of supporting andholding disks 11 or 12, for convenience in conducting the finaloperations upon the coil units or sections.

19 are centrally orificed filler disks of a size corresponding to thatofthe cavities between the aforesaid heads 14, 15 and 16, and adaptedfor application thereto, and removal therefrom, in the progress of theoperation of the apparatus. For convenience in applying and removing thesame as required, each filler disk is formed by two semicircular halveshinged together at one side by a hinge 20, and provided at the otherside with a suitable catch 21 for holding the said halves together.

The operation of the apparatus is as follows:-The end portions 22 of theseries of wires which are to form the coil windings are first threadedthrough the small passages 18, of the intermediate spool heads 16. Theseries of spool parts properly saturated with paraffin; end andintermediate disks 11 and 12, and spacing collars 13, are placed inposition upon the arbor 4, with the filler disks 19 occupying alternatecavities of the spools, as shown in Figs. 2 and 4, after which theclamping nut 10 is screwed up to securely hold the aforesaid parts inplace upon the arbor. Motion is now communicated to the winding head,arranged as above described, and with the continued revolution of thesame, the series of initial coil windings are simultaneously wound intothe series of alternate spool cavities not occupied by the filler disks19 aforesaid. With the completion of such initial coil windings, motionof the winding head is stopped, and the winding wires severed to leaveproiecting ends at the peripheries of the coils for convenience insubsequent assembly into an induction coil. The winding head is thenremoved from engagement with the chuck 7, reversed end to end and againattached to said chuck. At the same time the filler disks 19 are removedand the series of end portions 22, above described, are electricallycoupled with the series of wires from which the coil windings areformed. Motion is again imparted to the winding head, and the final coilwindings are simultaneously wound into the series of spool cavitiespreviously occupied by the filler disks 19, and as illustrated in Figs.3 and 5, and in a reverse direction to that of the previously formedinitial windings. With the completion of such final coil windings themotion of the winding head is stopped and the winding wires severed toleave projecting ends for convenience in assembling an induction or likecoil as before stated. After each winding operation as above set forth,the winding head is placed to one side to set and cool-,and to such enda series of winding heads are necessarily employed in order that thewinding operations may be practically continuous. With the coiling andsetting of the final windings, the clamping nut 10 is unscrewed, and theparts removed from the arbor 4. Heat is then applied locally to thedisks 11 and 12, and spacing collars 13, so as to facilitate theirremoval leaving the coil units complete and ready for assemblage into aninduction or like coil.

adapted to simultaneously wind therein individually unit windings, andmeans for carrying and imparting rotation to said winding head,substantially as set forth.

2. In an apparatus for winding induction coil units, the combinationwith a holding reel carrying the supply coils,

and a heating tank containing molten paraflin or the like, of a windinghead having a series of peripheral channels which receive and holdtheseries of coil unit spools and adapted to simultaneously wind thereinindividual unit windings, and means for carrying and imparting rotationto said winding head, the said winding head having carrying means at itsrespective ends adapting it to receive reverse rotation, substantiallyas set forth.

3. In an apparatus for winding induction coil units, the combinationwith a holding reel carrying the supply coils,

V and a heating tank containing molten parafiin or the like,

of a winding head having a series of peripheral channels which receiveand hold the series of coil unit spools and adapted to simultaneouslywind therein individual unit windings, and means for carrying andimparting rotation to said winding head, the said winding headcomprising a cylindrical arbor provided with carrying means at itsrespective ends, with a fixed collar near one end and with a clampingnut nearthe other end, and a series of disks arranged intrmediate ofsaid collar and nut, substantially as set forth.

4. In an apparatus for winding induction coil units, the combinationwith a holding reel carrying the supply coils, and a heating tankcontaining molten paraiiin or the like, of a winding head having aseries of peripheral channels which receive and hold the series of coilunit spools and adapted to simultaneously wind therein individual unitwindings, and means for carrying and imparting rotation to said windinghead, the said winding head comprising a cylindrical arbor provided withcarrying means at its respective ends, with a fixed collar near one endand with a clamping nut near the other end, and a series of disksarranged in pairs intermediate of said collar and nut, sub stantially asset forth.

5. In an apparatus for winding induction coil units, the combinationwith a holding reel carrying the supply coils, and a heating tankcontaining molten paraflin or the like,

of a winding head having a series of peripheral channels.

which receive and hold the series of coil unit spools and adapted tosimultaneously wind therein individual unit windings, and means forcarrying and imparting rotation to said winding head, the said windinghead comprising a cylindrical arbor provided with carrying means at itsrespective ends, with a fixed collar near one end and with a clampingnut near the other end, a series of disks arranged intermediate of saidcollar and nut, and a series of spacing collars arranged between saiddisks, substantially as set forth.

6. In an apparatus for winding induction coil units, the combinationwith a holding reel carrying the supply coils, and a heating tankcontaining molten par'aflin or the like, of a winding head having aseries of peripheral channels which receive and hold theseries of coilunit spools and adapted to simultaneously wind therein individual unitwindings, and means forcarrying and imparting rotation to said windinghead, the saidwinding head comprising a cylindrical arbor provided withcarrying means at its respective ends, with a fixed collar near one endand with a clamping nut near the other end, a series of disks arrangedin pairs intermediate of said collar and nut, and a series ofspacingcollars arranged between said disks, substantially as set forth.

7. In an apparatus for winding induction coil units, the combinationwith a holding reel carrying the supply coils, and a heating tankcontaining molten parafiin or the like, of a winding head having aseries of peripheral channels which receive and hold the series of coilunit spools and adapted to simultaneously wind therein individual unitwindings, filler disks adapted to occupy alternate cavities of thespools to be wound, and means for carrying and imparting rotation tosaid winding head, substantially as set forth.

8. In an apparatus for winding induction coil units, the combinationwith a holding reel carrying the supply coils, and a heating tankcontaining molten paraflin or the like, of a winding head having aseries of peripheral channels which receive and hold the series of coilunit spools and adapted to simultaneously wind therein individual unitwindings, filler disks, made in halves and adapted to ocseems adapted tooccupy alternate cavities of the spools to be wound, and means forcarrying and imparting rotation to said winding heads, substantially asset forth.

Signed at Chicago, Illinois, this 21st day of December 1906.

CARL A. PFANSTIEHL.

Witnesses ROBERT BURNS, HENRY Mon

